Concordia is a parish in Louisiana. It was formed in 1805 from the following parish/es: Avoyelles. Concordia began keeping marriage records in 1840. It began keeping land records in 1850, probate records in 1850, and court records in 1850. For more information, contact the county at 4001 Carter St., Vidalia 71373. On the attached map, Concordia is located at F4.